12mm or 12.7mm Shank - CNC Spoil board Surfacing Router BitsExquisite woodworking cutter, precise, smooth, no burr edges planer router bit. 3 wings make a fast and clean cut on your project material, great for projects of any level of complexity. Great for hand making and other woodworking job Our plaining router bits are the preferred choice of professionals and hobbyists alike, with these bits, one could make floor, cabinet door etc. Good for home and improvement. 3 WINGS WOOD CNC ROUTER BIT: Shank: 1 2" or